11778746325 has 12 divisors (see below), whose sum is σ = 19474194048. Its totient is φ = 6281998000.

The previous prime is 11778746321. The next prime is 11778746359. The reversal of 11778746325 is 52364787711.

It is not a de Polignac number, because 11778746325 - 2² = 11778746321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11778746321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78524901 + ... + 78525050.

It is an arithmetic number, because the mean of its divisors is an integer number (1622849504).

Almost surely, 2^11778746325 is an apocalyptic number.

11778746325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11778746325 is a deficient number, since it is larger than the sum of its proper divisors (7695447723).

11778746325 is a wasteful number, since it uses less digits than its factorization.

11778746325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157049964 (or 157049959 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 51.

The spelling of 11778746325 in words is "eleven billion, seven hundred seventy-eight million, seven hundred forty-six thousand, three hundred twenty-five".